A078278 - cp's OEIS frontend

A078278 a(n) is the number from which if odd-positioned digits are deleted then one gets the concatenation of first n prime numbers, while if even-positioned digits are deleted then one gets reverse concatenation of first n prime numbers. Position of least significant digit is considered to be 1.

n	a(n)
1	22
2	2332
3	253352
4	27355372
5	213157751312
6	2133517117151332
7	21375173111117351372
8	213951771113113117751392
9	2233517911171133117117952332
10	22395273111911371173119127352392

[22, 2332, 253352, 27355372, 213157751312, 2133517117151332, 21375173111117351372, 213951771113113117751392, 2233517911171133117117952332, 22395273111911371173119127352392]

cp's OEIS Frontend

A078278 a(n) is the number from which if odd-positioned digits are deleted then one gets the concatenation of first n prime numbers, while if even-positioned digits are deleted then one gets reverse concatenation of first n prime numbers. Position of least significant digit is considered to be 1.

Table of values

List of values